mp3info is a command-line tool that allows you to view and edit ID3v1 tags of MP3 files. ID3v1 tags are metadata stored within the MP3 file that contain information such as the artist name, song title, and album title.

Use case 1: Show all ID3v1 tags of a specific MP3 file

Code:

mp3info path/to/file.mp3

Motivation: This use case is useful when you want to quickly view the ID3v1 tags of a specific MP3 file.

Explanation: The command mp3info is followed by the path to the MP3 file. This will display all the ID3v1 tags of the specified MP3 file.

Example Output:

File: path/to/file.mp3
Title: Song Title
Artist: Artist Name
Album: Album Title
Year: 2022
Comment: Comment Text
Genre: Rock

Use case 2: Edit ID3v1 tags interactively

Code:

mp3info -i path/to/file.mp3

Motivation: This use case allows you to interactively edit the ID3v1 tags of a specific MP3 file.

Explanation: The -i option indicates that the command is in interactive mode, and the path to the MP3 file is provided as an argument. This will open a text-based interface where you can modify the ID3v1 tags.

Example Output:

File: path/to/file.mp3
Title [Song Title]:
Artist [Artist Name]:
Album [Album Title]:
Year [2022]:
Comment [Comment Text]:
Genre [Rock]:

Use case 3: Set values for ID3v1 tags in a specific MP3 file

Code:

mp3info -a "artist_name" -t "song_title" -l "album_title" -y year -c "comment_text" path/to/file.mp3

Motivation: This use case allows you to set specific values for the ID3v1 tags of a specific MP3 file.

Explanation: The -a option is used to specify the artist name, the -t option is used to specify the song title, the -l option is used to specify the album title, the -y option is used to specify the year, the -c option is used to specify the comment, and the path to the MP3 file is provided as an argument. This will set the respective values for the ID3v1 tags.

Example Output: No output is shown if the command is successful.

Use case 4: Set the number of the track in the album for a specific MP3 file

Code:

mp3info -n track_number path/to/file.mp3

Motivation: This use case allows you to set the number of the track in the album for a specific MP3 file.

Explanation: The -n option is used to specify the track number, and the path to the MP3 file is provided as an argument. This will set the track number for the given MP3 file.

Example Output: No output is shown if the command is successful.

Use case 5: Print a list of valid genres and their numeric codes

Code:

mp3info -G

Motivation: This use case allows you to retrieve a list of valid genres and their corresponding numeric codes.

Explanation: The -G option is used to print a list of valid genres and their numeric codes.

Example Output:

0:   Blues
1:   Classic Rock
2:   Country
3:   Dance
4:   Disco
...

Use case 6: Set the music genre for a specific MP3 file

Code:

mp3info -g genre_number path/to/file.mp3

Motivation: This use case allows you to set the music genre for a specific MP3 file.

Explanation: The -g option is used to specify the genre number, and the path to the MP3 file is provided as an argument. This will set the music genre for the given MP3 file.

Example Output: No output is shown if the command is successful.

Conclusion:

The mp3info command provides a convenient way to view and edit the ID3v1 tags of MP3 files. Whether you need to simply view the tags or make changes to them, the various use cases illustrated in this article demonstrate how to use the command effectively.